Window-screen



I'. ROCH.y

, wlNnow SCREEN.`

APPLICATION FILED'APR. 3, l9l9.

Patented July 29, y1919.

MMM

JOSEPH ROCH,A 0F DETROIT, MICH'IGAN'.

`WINDOWSCREEN Specification of Letters Patent.

Patented .idly 2e, wie.

Application led April 3, 1919. Serial N o. 287,167.

To all whom t may concern Be it known that I, JOSEPH Roon, a citi zen of the United States, and residing at Detroit, in the county of Wayne and State of Michigan, have invented a new and Improved Window-Screen, ofwhich the following is a speciiication. This invention relates to means for guiding and supporting window screens woven of wires or fibers, and its object is to provide means for holding a screen taut and preventing openings along its vertical edges.

rlhis invention consists of a spring roller to tension the spring and wind it up out of the way when not in use and means to stiffen and hold down the lower edge of the screen, and a pair of guide bars secured to the window casing, which bars are convex toward the screen when pulled down and engage and stress the screen throughout their length.

1t further consists in the details of invention illustrated in the accompanying drawing and particularly .pointed out in the claims.

In the accompanyingdrawing, Figure 1 is an outside elevation of a window provided with this improved screen. Fig. 2 is a vertical section on the line 2-2 of Fig. 1 onA a larger scale. Fig. 3 is a horizontal section through the end of the roller on which the screen is mounted. Fig. 4 is a horizontal section on the line 4.-4 of Fig. 1 on a larger scale. Fig. 5 is a perspective view of a fastener for a lower corner of the screen. Fig. 6 is a vertical section through a roller and a case therefor which may be mounted at the top of window casings already-in po sition.

Similar `reference characters refer to like parts throughout the several views.

In most houses built of wood the outer top piece 1 of the window casing can be removed and there is usually a space several inches in height above the lintel 2. Within this space and secured to the part 1 and extending inwardly are brackets 3 which support a well known spring roller 4 on which the woven screen 5 is mounted, which screen is preferably only slightly narrower vthan the window opening. rl`his screen is preferably of wire but any other material may be employed. A narrow slot 6 is cut or left betweenthe 'outer edge of the lintel 2 and the outer top piece 1 of the casing to permit the screen to move up and down.

The casing is provided with the vertical outer rails 7, inner rails 8 and parting rails 9 secured to the sides 10 of the caslng to guide the upper window sash 12 and lower sash 13. Secured at their lower ends to the outer rails 7 are the vertical guide and support bars 14, preferably of resilient wood, whose outer edges are curved outwardly, as shown in Fig. 2. It will usually be found suliicient to have the middle portions of these guides extend about one half inch beyond the ends for a window four feet high. Near their upper ends, these Guide bars may be supported by screws 15 (Fig. 4) that extend through transverse slots 16 in these guide bars and permit the upper ends of the guide bars to swing back when the screen is released and raised and the cross bar 17 at the lower edge of the screen is pulled up across the slot 6. f

The lower ends of the curved guide bars 14 are formed with notches to receive the cross bar 17 which permits the screen to engage the outer edges of the guide bars throughout their length. Because of the curvature of these outer ,edges the screen is pulled tightly against them by the spring roller and is held there even against a considerable wind.

Small pins 18 (Fig. 5) may extend toward l each other from the lower ends of the guide bars and may be engaged by hooks 20 pivoted on plates 20a secured to the ends of the inner face of the cross bar 17 to prevent the lower end of the screen from swlnging out. Any desired type of handle may be secured to the cross bar 1-7 whereby it may be pulled down, dotted lines 22, Fig. 1, indicating the location of the handle.

When the house is already built and it is inconvenient to mount the roller for the screen above the lintel, a small case 24, Fig. 6, may be secured to the lower side of the lintel 25, and this case may have a slot 26,

for the screen, the coperating guide bars and other parts being as before described.

The principal advantage in so mounting the guide bars that the upper part can swing out is that, should one edge of the screen be slightly longer than the other, the slack caused by this excess of length will be taken up by the resilient guide bar on that side.

v inglacross the normal plane'ofthe screen The proportions and sizes of the various parts of this screen construction may. all be changed Without departing from the spirit of this invention'asset forth in the follow ing claims. 1

.I claim vl. The combination with a Window casing, of a spring roller at one end thereof, a flexible screen adapted to be wound on the roller, means to hold one end of the screen at the opposite end of the casing, and guide bars secured to the sides of the casingand extendwhen extended so vthat the' screen will be drawn against said bars by the spring roller.

2. The combination with a Window casing, Y

of a spring roller at theupper part thereof adapted to carry a screen, va flexible jscreen adapted to be wound on; the roller.,'guide 'bars secured to the sides of thc casing and so positioned that the screen vWill drawn against the bars when lowered, and means to hold down the lower end of the screen, the edges of the uide bars engaging the screen being convex engthwise.

A casing and so positioned that the screen will be drawn against the bars when lowered, and means to hold down the lower end .of the screen, the guide bars being resilient and secured at their lower ends and having their lupper ends free to move in and out.

4:. The combination with a window casing, of a spring roller at the upper part thereof adapted to carry a screen, a screen on said I roller and a cross bar at the lower end 'of the ba-rs'when lowered, the vertical edgesof the` guide bars engaging the screen being convex lengthwise, and means to. hold the Across barlioni: enotches at the lower ends ofthe guide ars.l v

` JOSEPH ROCH. 

